« Strona Główna Tytuł: Tuning fork Strona dodana: 2007-11-19 03:12:39 Opis Tuning fork - A tuning fork is a simple metal two-pronged fork with the tines formed from a U-shaped bar of elastic material (usually steel ). A tuning fork resona Url:http://web-development-1.info/en/Tuning_fork
